js驗證逗號隔開可以是中文字母數字

<script type="text/javascript">
    var refid='dasdasd,dadsad';
    var reg =/^([\u0391-\uFFE5\d\w,])*([\u0391-\uFFE5\d\w]+)$/;
    if(refid != "") {
        if(reg.exec(refid)) {
            alert('驗證通過');
        }else {
            alert('驗證失敗');
        }
    }
</script>